Volume 1, Book 10, Number 542:
Narrated Abu Musa:
My companions, who came with me in the boat and I landed at a place called Baqi Buthan. The Prophet was in Medina at that time. One of us used to go to the Prophet by turns every night at the time of the Isha prayer. Once I along with my companions went to the Prophet and he was busy in some of his affairs, so the 'Isha' prayer was delayed to the middle of the night He then came out and led the people (in prayer). After finishing from the prayer, he addressed the people present there saying, "Be patient! Don't go away. Have the glad tiding. It is from the blessing of Allah upon you that none amongst mankind has prayed at this time save you." Or said, "None except you has prayed at this time." Abu Muisa added, 'So we returned happily after what we heard from Alllah's Apostle ."
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Volume 1, Book 10, Number 543:
Narrated Abu Barza:
Allah's Apostle disliked to sleep before the 'Isha' prayer and to talk after it.
Volume 1, Book 10, Number 546:
Narrated Anas:
The Prophet delayed the'lsha' prayer till midnight and then he offered the prayer and said, "The people prayed and slept but you have been in prayer as long as you have been waiting for it (the prayer)." Anas added: As if I am looking now at the glitter of the ring of the Prophet on that night.
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Volume 1, Book 10, Number 547:
Narrated Jarir bin 'Abdullah:
We were with the Prophet on a full moon night. He looked at the moon and said, "You will certainly see your Lord as you see this moon, and there will be no trouble in seeing Him. So if you can avoid missing (through sleep, business, etc.) a prayer before the rising of the sun (Fajr) and before its setting ('Asr) you must do so. He (the Prophet ) then recited the following verse:
And celebrate the praises Of Your Lord before The rising of the sun And before (its) setting." (50.39)
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Volume 1, Book 10, Number 548:
Narrated Abu Bakr bin Abi Musa:
My father said, "Allah's Apostle said, 'Whoever prays the two cool prayers ('Asr and Fajr) will go to Paradise.' "